Fusible Plug., patent, January 21, 1908; (https://texashistory.unt.edu/ark:/67531/metapth513072/m1/1/: accessed July 5, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Fusible Plug., patent, January 21, 1908; (https://texashistory.unt.edu/ark:/67531/metapth513072/m1/1/: accessed July 5, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .